九龙山气田排水采气工艺技术研究及应用

Research and application of Jiulongshan gasfield drainage gas recovery technology

随着地层能量的衰竭,地层出水增多,气井的携液能力变差,甚至因井筒积液而停产,严重影响了气田的高效开发。本文针对目前九龙山气田产水气井所面临的问题,对该区块主要的排水采气工艺进行研究及分析后发现,泡沫排水采气工艺对具有一定自喷能力的弱喷积液井具有较好的适用性;气举排水采气工艺则适用于积液较多且产水较多的气井;同时对于水淹程度较大、水体较为活跃的气井,使用电潜泵强排水工作可以对水淹井复产可以取得不错的效果。

With the exhaustion of the formation energy and the increase of the water production, the ability of liquid carrying in the wellbore become worse, some well were forced to off production due to the liquid in the wellbore which have a severe effect on the exploration of gas field. On the basis of the problems in the Jiulongshan gas field water-yielding gas well,the research on the drainage gas recovery technology have been done in the paper. The result indicated that foam drainage recovery technology apply successfully to the well which have the auto flowing ability, the gas lift drainage technology usually apply to the well which have a higher water production. For those which have a higher water output, the electric submersible pump can get perfect performance in the recovery production in water flooding well.